Scalloped (cupped) tire wear
Posted: Wed Jul 09, 2014 1:19 pm
My '75 Westfalia had a "rotation-dependent vibration" that almost completely disappeared when I swapped over to a different pair of tires in the front. The tires I removed had about 20,000 miles on them.
When I inspected the tires that had been removed, I noticed a "scalloping" on both tires. There was not a noticeable difference between the inside and outside. I suspect there is a problem in my front suspension somewhere, but am not sure where to start. All of the stuff up there needs a going-over, but I am looking for ideas as to what might cause.
The interwebs suggest that this problem is due to worn struts or shock absorbers. I have relatively new shocks without a ton of miles on them, so I don't suspect the shocks.
I do occasionally get a "bouncing" effect when driving at highway speed. This seems to happen when there are regularly spaced control joints on a concrete highway. This happened a lot with my old shocks, and still happens sometimes with the new ones.
Anyway, if anyone has ideas, suggestions, or disparaging remarks I'm all ears.
When I inspected the tires that had been removed, I noticed a "scalloping" on both tires. There was not a noticeable difference between the inside and outside. I suspect there is a problem in my front suspension somewhere, but am not sure where to start. All of the stuff up there needs a going-over, but I am looking for ideas as to what might cause.
The interwebs suggest that this problem is due to worn struts or shock absorbers. I have relatively new shocks without a ton of miles on them, so I don't suspect the shocks.
I do occasionally get a "bouncing" effect when driving at highway speed. This seems to happen when there are regularly spaced control joints on a concrete highway. This happened a lot with my old shocks, and still happens sometimes with the new ones.
Anyway, if anyone has ideas, suggestions, or disparaging remarks I'm all ears.